Verified Solution • 2025–26 Session moderate

QJEEM20Ph3e97: JEE Main 2020 Physics - Class 12 JEEM20Ph3e97 Solution: A plane electromagnetic wave of frequency 25 GHz is propagating …

A plane electromagnetic wave of frequency 25 GHz is propagating in vacuum along the z-direction. At a particular point in space and time, the magnetic field is given by B→=5×10−8j^T. The corresponding electric field E→ is (speed of light c = 3 × 108 ms–1)

Multiple Choice Options

  • A 15 i^V / m
  • B -15 i^V / m
  • C 1.66 × 10–16 i^V / m
  • D -1.66 × 10–16 i^V / m

Step-by-Step Verified Solution

E→=B→×V→

= (5×0−8j^)×(3×108k^)

= 15i^ V/m

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